GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Other intangible assets
Total other intangible assets, gross carrying amounts	$ 68,992	$ 66,010
Accumulated amortization	(33,133)	(23,483)
Other intangible assets, net	35,859	42,527
IPRD
Other intangible assets
IPRD	6,560	3,750
Other intangible assets, net	6,560	3,750
Licenses
Other intangible assets
Finite-lived intangible assets, net	400	307
Accumulated amortization	(128)	(102)
Other intangible assets, net	$ 272	205
Licenses | Minimum
Other intangible assets
Finite-lived intangible asset, useful life (years)	5 years
Licenses | Maximum
Other intangible assets
Finite-lived intangible asset, useful life (years)	15 years
Acquired marketed product rights
Other intangible assets
Finite-lived intangible assets, net	$ 60,477	60,454
Accumulated amortization	(31,949)	(22,380)
Other intangible assets, net	$ 28,528	38,074
Acquired marketed product rights | Minimum
Other intangible assets
Finite-lived intangible asset, useful life (years)	3 years
Acquired marketed product rights | Maximum
Other intangible assets
Finite-lived intangible asset, useful life (years)	15 years
Capitalized software
Other intangible assets
Finite-lived intangible assets, net	$ 1,555	1,499
Accumulated amortization	(1,056)	(1,001)
Other intangible assets, net	$ 499	$ 498
Capitalized software | Minimum
Other intangible assets
Finite-lived intangible asset, useful life (years)	3 years
Capitalized software | Maximum
Other intangible assets
Finite-lived intangible asset, useful life (years)	10 years